diff --git a/prebuild.xml b/prebuild.xml
index 15ad30fd34..94a531fe39 100644
--- a/prebuild.xml
+++ b/prebuild.xml
@@ -2659,7 +2659,6 @@
       <Reference name="Microsoft.JScript"/>
       <Reference name="XMLRPC.dll"/>
       <Reference name="OpenSim.Framework.Communications"/>
-      <Reference name="OpenSim.Data.Base"/>
       <Reference name="Nini.dll" />
       <Reference name="log4net.dll"/>
       <Reference name="DotNetOpenMail.dll"/>